Traveling through a book to save the heroine in the apocalypse? Are you crazy?

"System, thank you."

Ye Yiyi's solemn thanks made the system's eyes tremble, and it turned around and didn't look at Ye Yiyi again.

"Don't talk so much, drink your drink."

Ye Yiyi found the awkwardness of the system funny. Considering that her body would get hot in a moment, Ye Yiyi went straight into the bathroom, took off her clothes, turned on the cold water, and then drank it resolutely.

It is worthy of being something produced by the system. As soon as Ye Yiyi drank it, she felt her body starting to feel hot. If it was just the heat, Ye Yiyi could still hold on.

But not only was her body hot, her head was also aching and she felt as drowsy as if she had a fever. Ye Yiyi lost her balance and fell into the bathroom.

The loud sound of falling startled the system outside the door. Thinking of the suffering Ye Yiyi would suffer next, the system naturally felt bad.

But no matter how uncomfortable it was, there was no way out so I just stayed outside. Fortunately, the marrow washing fluid would not cause any problems, it just made people uncomfortable.

Ye Yiyi inside had no idea what the system was thinking. At this moment, she was struggling to move under the cold water.

The cold water poured over her head made Ye Yiyi feel a little better. At least it allowed her to catch her breath and concentrate on fighting the dizziness and pain in her head.

Just when Ye Yiyi thought that this was it and that she should be able to get through it, the pain that slowly spread from the back of her head down to her spine made Ye Yiyi's eyes widen instantly, and the muffled groans of pain could no longer be suppressed and broke out of her mouth intermittently.

But the pain tortured Ye Yiyi all the time, making her unable to faint even if she wanted to, and she could only bear it.

The thing growing from the back of my spine was like a sharp blade, cutting into my back fiercely. My hands subconsciously wanted to reach out to the painful area, trying to get rid of the thing that was causing extreme pain behind me.

But when he stretched it halfway, he fell to the ground due to lack of strength, and his whole body began to feel sore and weak.

It was extremely uncomfortable but I couldn't do anything, as if someone was holding my body down and I could clearly feel the pain of being disemboweled but was powerless to stop it.

I could only endure it like that, with painful gasps and groans filling the entire bathroom and room.

But the system floating at the bathroom door couldn't bear to listen anymore, so it blocked its ears and just stared straight ahead.

On the other side, the hundred people led by Yang Luoliu had already taken the lead and stood on the wall of the base.

Because of the snow, the originally vast and beautiful scene was ruined by the dark mass of zombies in front of them. Their movements were not very agile but their numbers were very large.

There were so many that it was impossible to count or see how many zombies there were, and so many that the hearts of everyone standing on the city wall trembled.

Even though Yang Luoliu had experienced so many zombie waves, he still felt nervous when he saw the zombies in front of him.

Even she herself was unsure, and suddenly she was glad that she didn't leave Ye Yiyi behind, because the outcome of this battle was clear.

But no one chose to retreat, because their home was behind them. If everyone abandoned their home, where would humanity go?

Just then Zhang Xin stood beside Yang Luoliu and chuckled when Yang Luoliu looked at him.

"It is an honor for Zhang to fight with the strongest man in the base."

Yang Luoliu didn't want to listen to these flatteries, so he looked away.

“It’s dangerous to be at the front.”

Zhang Xin just smiled faintly after hearing this.

"Now that you're wearing this military uniform, there's no reason to back down."

After saying this, Zhang Xin spoke quickly without further ado as he looked at the approaching group of zombies.

"A month ago, Lin Haihua led a team of 100 people to borrow personnel from a security base established by another military government."

"But because of the communication breakdown, we can only guess where there is a base where we can borrow people. If nothing goes wrong, they should have been borrowed half a month ago, and they should be back in the next one or two days."

When Yang Luoliu looked over, Zhang Xin's expression was serious.

"I didn't say it before because I was afraid of being disappointed, but in this situation I think there should still be some hope."

Everyone present was a psychic, and a high-level one at that, so they naturally heard Zhang Xin's words clearly.

Yang Luoliu naturally understood this logic. When Zhang Xin finished speaking, the tide of zombies was getting closer and closer.

As soon as Zhang Xin waved his hand, a large number of soldiers with guns climbed up the city wall, and a number of helicopters and fighter planes took off from the rear. The scene was very spectacular for a while.

Everyone was ready to go, even those who were not experienced in battle held their weapons tightly.

At this moment, Zhang Xin turned around and looked at the people who were ready to go under the city wall and spoke loudly.

"Everyone, let me tell you the truth. All the people in the base add up to no more than 50,000 or 60,000 people, and a rough estimate of the number of zombies outside is more than 100,000. I, Zhang Xin, will not stop anyone who wants to leave now. The back door is there and you can leave at any time."

Zhang Xin's voice was so loud that everyone present could hear it.

But no one who heard it retreated, and suddenly someone in the crowd spoke up.

"This is our home. There is no reason to hand it over to monsters. So we will fight to the death and never retreat."

After this person finished speaking, people around him began to repeat his words.

"Fight to the death, never retreat."

Gradually, more and more people spoke up, and everyone's fear gradually faded away in the sound of voices that became louder and louder.

Everyone clenched their hands tightly and waited for their own battle.

The zombies in front seemed to have heard the shout, and their movements began to speed up. In just a moment, they were almost reaching the moat.

Seeing this, Yang Luoliu directly summoned lightning. Seeing Yang Luoliu's action, everyone on the city wall summoned their own supernatural powers.

At the same time, Zhang Xin spoke quickly.

"In that case, let's do as we rehearsed. The people on the plane on the city wall will block most of the zombies and let a small group of zombies into the base to annihilate them. Thank you for your hard work. I won't say more. Just protect yourselves."

"Yes."

"Open the door, release the zombies, and fight."

As soon as Zhang Xin finished speaking, the dark zombies stepped into the moat.

As soon as Zhang Xin finished speaking, all the soldiers opened fire at the same time, and various fighter jets and helicopters flew outside the base and began suppressing fire.

The gate of the base was opened at the same time.

Everyone inside gasped when they saw the number of zombies outside. Suppressed fear gradually filled their hearts, and their hands holding their weapons were shaking.

The moment the gate of the base opened, the zombies became even more excited when they saw the humans inside. Their highly rotten faces were roaring hideously, and their pace became faster. In a moment, they reached the gate and were trying their best to squeeze in.

The stench was so strong that even the cold winter days could not suppress it.

But even so, they did not think of running away. Instead, they suppressed their instinctive fear and stood still waiting for orders.

There is no rear in this battle, everyone is on the front line; there are no civilians in this battle, everyone is a soldier.

At this moment, human beings no longer have any intrigue, but are united against external threats, just to protect their own homeland.

I saw the zombies had already entered the gate of the base.

Li Wanwan and Yan Nanyu looked at each other and nodded. They both saw the words "take care" in each other's eyes, and then spoke loudly at the same time.

"My team, follow me. Protect yourself. The battle begins."

After saying that, the two of them went to their own positions at the same time.

At the same time, there were more than a dozen teams led by government officers, and they all took action at the same time as Li Wanwan was taking action.

Only Lin Haidao nodded to Zhang Xin before leaving and then left without looking back.

Because he is just an ordinary person and has no way to rush to the front, he can only retreat behind in this situation.

Although they don’t know what their fate will be, they cannot and do not want to retreat from this battle.

However, Yang Luoliu did not participate in these plans. Not only Yang Luoliu, but the entire team led by Yang Luoliu did not participate in these plans.

Because they have been upgrading their levels in the past few months, and as the main force of the base, they began to upgrade their levels day and night when Yang Luoliu reported that there would be a tide of zombies attacking the base.

To this day, Yang Luoliu has only reached the peak of the eighth level, while the one hundred people in the team are all at the seventh level and above, with no one below the seventh level.

Everyone was waiting for this moment. After the zombies entered the base, the wall that was originally considered safe turned into an isolated island, surrounded by waves formed by zombies.

What Yang Luoliu's team has to do is to protect the soldiers on the city wall and block most of the zombies from entering the base.

If this line of defense is breached by zombies, the only thing that awaits the base is destruction.

The base was now like hell on earth, with the constant howling of zombies and the sounds of various superpowers hitting the zombies, the walls, and the air.

Or the sound of humans screaming when they are accidentally knocked down by zombies.

And these sounds gradually became clearer and entered Ye Yiyi's ears bit by bit.

At this moment, Ye Yiyi, who had had her eyes closed, suddenly opened her eyes.

The pain in my body faded away very quickly, and what followed was a warm feeling like a spring breeze.

Ye Yiyi's eyes gradually became clear with a sharp light in them. She stood up from the ground nimbly, without any sign of weakness just now.

The body seemed to be continuously supplying strength to every part of the body, allowing Ye Yiyi to personally understand the phrase "as light as a swallow".

Then he lowered his head and looked at his hands in disbelief.

It is still the same body, as if nothing has changed, yet it seems as if everything has changed.

What remains unchanged is the body shape, what changes is the core of the body.

Now Ye Yiyi not only has excellent eyesight and hearing, but also has strength. The endless supply of strength makes Ye Yiyi extremely excited.

Only now did Ye Yiyi realize how big the gap was between people with special abilities and ordinary people.

However, before Ye Yiyi could remain excited for long, the warmth throughout her body quickly faded away in an instant.

What followed was extreme hunger. Ye Yiyi, who was not mentally prepared, held on to the bathroom and retched because of the sudden discomfort.

After finally calming down a bit, Ye Yiyi quickly entered the space and took out a pile of bread. She wolfed down more than a dozen of them before she was able to stop retching.

She just managed to stop dry heaving, but the roars of the zombies outside continued, and Ye Yiyi knew she didn't have time to waste.

Ye Yiyi could only eat bread while taking clothes from the space and getting herself ready.

After Ye Yiyi was dressed properly, she came out of the bathroom. Only then was she full.

As soon as she came out, she saw the system floating in the air motionless. Ye Yiyi called it twice but it didn't respond. However, she just shook her head, thinking that the system was still acting strange and didn't care what the system was doing.

Time was running out, so Ye Yiyi took out all the crystal cores in the space. Looking at the crystal cores that were piled up like a small hill, Ye Yiyi picked up one and absorbed it without saying a word.

The system that blocked the sound saw with its peripheral vision that a crystal core seemed to have rolled down under its feet, and then it realized that Ye Yiyi seemed to have come out.

When I turned around, I saw Ye Yiyi preparing to absorb a crystal core.

When the system saw this scene, it floated directly in front of Ye Yiyi without thinking, and stretched out its hand to stop Ye Yiyi from putting the crystal core into her mouth.

Looking at the system that suddenly appeared, Ye Yiyi looked over in confusion.

The system then unblocked the sound and looked at Ye Yiyi and spoke solemnly.

"Host, the energy level of the crystal core is too slow to be absorbed."

Ye Yiyi is not a fool. After experiencing the experience of it transferring energy to Yang Luoliu, she knew what the system was going to do after hearing this.

But the system is willing but I am not. After all, the last time I sent a little energy to Yang Luoliu, the system became so weak.

Who knows how much energy the system will need this time? What if the system dissipates because of this?

After Ye Yiyi knew that the system was an energy body, she didn't intend to let the system do this. Just as she was about to refuse, she heard the system speak.

"Host, there is no time to waste, right? We are all in danger, and you don't want to delay upgrading your superpowers after all the hard work you put into developing them."

Ye Yiyi was stunned by the system's words, but after a moment, Ye Yiyi spoke firmly.

"It's okay. At most I can upgrade to level three or four. I am now full of strength. With the various martial arts you taught me, I can face any danger."

The system found Ye Yiyi's words a little funny. How could it not know Ye Yiyi's strength? After all, it was the one who taught her.

But it just scanned and found that tens of thousands of zombies were something that a third or fourth level psychic could not deal with, even if Ye Yiyi was agile.

Ye Yiyi said this only because she was worried about herself, but the system saw through it without saying anything and directly pulled Ye Yiyi's hand away.

When the system scanned the number of zombies, it planned to use its own energy to help Ye Yiyi upgrade.

In order to help Ye Yiyi cope with this challenge, and also to allow Ye Yiyi to integrate into this world as soon as possible, a world that will no longer have her to protect.

Yes, the system intends to let Ye Yiyi face this danger alone. After all, the world in the future will be more dangerous than it is now.

At least this time the danger is known and can be faced directly, but future dangers may be potential.

Ye Yiyi couldn't handle the danger this time, so the system would never let Ye Yiyi stay in this world no matter what.

However, these were just the system's inner thoughts and Ye Yiyi didn't know. When the system withdrew its hand, Ye Yiyi thought that the system had been persuaded to retreat by her.

Just as Ye Yiyi was about to put the crystal core into her mouth, the crystal core in front of her that was as tall as a hill and the crystal core in her hand disappeared on the spot.

Needless to say, it was clear who did it. Ye Yiyi knew that it was planning to confront her.

Under normal circumstances, Ye Yiyi would definitely fight with the system, but after hearing the chaotic noises outside, Ye Yiyi looked at the system in front of her helplessly.